Display base



FIG. 1 is a perspective view of a display base;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof; it is noted that the opposite side mirrors the side shown;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a top view thereof. 

The ornamental design for a display base, as shown and described. 